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212314 (2005 QU42)
Classification: Outer Main-belt Asteroid          SPK-ID: 2212314
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1473364545851426 6.3287e-08  
a 3.219926933190817 3.6689e-08 au
q 2.745514314831271 1.9999e-07 au
i 5.217386718562756 7.5796e-06 deg
node 18.40436292122417 5.4756e-05 deg
peri 315.1853541359121 5.9096e-05 deg
M 206.8648853515045 2.5648e-05 deg
tp 2459898.217599049060
(2022-Nov-14.71759905)
0.00016032 TDB
period 2110.412993123629
5.78
3.6071e-05
9.876e-08
d
yr
n .1705827253589653 2.9156e-09 deg/d
Q 3.694339551550363 4.2095e-08 au
  Orbit Determination Parameters
   # obs. used (total)      408  
   data-arc span      7529 days (20.61 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56538  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:44:20  

Additional Information
 Earth MOID = 1.73885 au 
 Jupiter MOID = 1.69918 au 
 T_jup = 3.166 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457113.5 (2015-Apr-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1458550973537385 6.3344e-08  
q 2.750512439823356 1.9988e-07 au
tp 2457787.798218364437
(2017-Feb-03.29821836)
0.00013964 TDB
node 18.44090721492897 5.4747e-05 deg
peri 315.3609461357207 5.9161e-05 deg
i 5.217389114365288 7.5788e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      408  
   data-arc span      7529 days (20.61 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56538  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:44:20  

Additional Information
 Jupiter MOID = 1.69918 au 
 T_jup = 3.166 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.012441358183398E-15 -1.251280717718288E-14 4.193168006899186E-12 6.183788720128201E-15 6.06477438181982E-13 8.948439064649264E-16
q -1.251280717718288E-14 3.995213585106943E-14 -1.121665818001256E-11 -2.22229718096453E-14 -1.634735564123221E-12 9.572891253967171E-16
tp 4.193168006899186E-12 -1.121665818001256E-11 1.949847641796145E-8 1.204478610165302E-11 3.138312214521996E-9 2.600906070561872E-12
node 6.183788720128201E-15 -2.22229718096453E-14 1.204478610165302E-11 2.99718506774221E-9 -2.982386289188986E-9 -6.117664271546333E-11
peri 6.06477438181982E-13 -1.634735564123221E-12 3.138312214521996E-9 -2.982386289188986E-9 3.500074649867012E-9 6.128992755555159E-11
i 8.948439064649264E-16 9.572891253967171E-16 2.600906070561872E-12 -6.117664271546333E-11 6.128992755555159E-11 5.743771736419691E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO437020  

212314 (2005 QU42)          Discovered 2005-Aug-26 by LONEOS at Anderson Mesa
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2005 QU42 = 1999 RH254 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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